Constellation labeling maps for low error floors

A constellation labeling map is the assignment of a bit pattern to each symbol in a signal-set constellation. In a system with bit-interleaved coded-modulation and iterative decoding and demodulation (BICM-ID), the error oor of the bit error rate is highly dependent on the labeling map. A simple class of labeling maps that signi cantly lower the error oors is presented. Examples show the applications of the proposed mapping to phase-shift keying (PSK), quadrature amplitude modulation (QAM), and continuousphase frequency-shift keying (CPFSK). Simulation results indicate that the proposed labeling maps are comparable to or better than other labeling maps in providing a low error oor. A major advantage of the proposed labeling maps is that they are easily generated.

• Type: Journal
• Year: 2008
• Where: TWC
• Authors: Don J. Torrieri, Matthew C. Valenti
• Keywords: Bit Error Rate, Error Oor, Labeling Maps, TWC 2008